Matrix BJJ traveled once more to Cologne to participate at the Iron Born submission grappling challenge 4. It is a great event organized by Heiko and his friends under modified Eddie Bravo rules. In the nogi I sticked two submissions, a knee bar and guillotine, and closed the brackets with my teammate Christian, who had an awesome fight against Philipp Hochberg (Taifun Luta Livre), which he won in the overtime via mata leao. In gi I surprised Johannes Schwerdtfeger (Ronin BJJ) with a straight footlock to get the gold. My favorite sparring partner Mraz didn't drop a sweat to win his 100 kg division, as well as the absolute, tapping Sascha Ernst (Body Masters) and Sven Groten (Combat Club Cologne) among others. Our student Felix, fought great and managed to get a d'arce after a knee slide pass in his first fight of his first competition and later hit a kimura submission! Steven, a recently promoted blue belt, started his way in the advanced divisions with a great heel hook victory and won the gold in extremely had fought matched, which we won in the overtime! Overall it was a great event, organized carefully by Heiko, who even managed to organize an UFC 229 replay on a beamer before starting! I've put all of the submission in a highlight video, so enjoy watching: